I tested four water sources in my home via instructions, some filtered, some not: all tested pure white, or, zero chlorine. This puzzles me, as I know we have very good water in Little Rock, AR but I am thinking that it would contain at least 2 P.P.M. chlorine. Then again, I am no chemist.

Room temperature water of about 75 degrees F is the most common. However, if your chlorine sanitizing solution is a higher concentration of 100ppm, the temperature range of 55 degrees F is also sufficient.